In a security updates post, Samsung lays out the devices that will get monthly, quarterly, and bi-annual updates. As recently spotted by 9to5Google, the S21 series will now be downgraded to quarterly updates.

The Samsung Galaxy S21 series phones will no longer be getting monthly updates. The Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra were promised 4 years of updates. That effectivel

Samsung's Galaxy S21 series, including the S21, S21 Plus, and S21 Ultra, will now receive quarterly updates instead of monthly updates.

Samsung has announced a change in its update schedule for the Galaxy S21 series, which includes the S21, S21+, and S21 Ultra models. These devices will no longer receive monthly security updates and will instead be shifted to a quarterly update cycle. Why did Samsung go ahead with this much cost cutting on Galaxy S25 Ultra

This will affect the Galaxy S21, S21+, and Galaxy S21 Ultra. But it will not have an effect on the Galaxy S21 FE, which was released a little later and is on a different schedule.

In a move that we’re now seeing on a somewhat set schedule, Samsung’s Galaxy S21 series has been dropped to quarterly updates. With this, owners of the Galaxy S21, S21+, and S21 Ultra should no longer expect monthly security updates,

We’re now keeping our phones longer between upgrades, which is why the guaranteed minimum support periods are extending across the board. It is clear that this update decision from Samsung will affect millions of users, and while three-monthly updates is better than no updates, it doesn’t help when there’s an urgent fix mid-cycle.